mechanics.tradeIndicators
Testers wrote indicators down 315,918 times during 2025, 28th on a list of 265 kinds of defect.
315,918recorded in 2025
1.0%of all recorded defects
28thon the national list
What it is
Each indicator must flash at the right rate and in the right amber colour. A bulb that has failed usually makes the others flash noticeably faster, which is your own warning.
What the tester can write down
| Wording on the certificate | Category | Recorded in 2025 |
|---|---|---|
| Lamp emitted colour, position or intensity not in accordance with the requirements | Major | 178,744 |
What you can do about it
If the clicking suddenly speeds up, a bulb has gone somewhere. Bulbs cost little, though on some cars the rear cluster has to come out to reach them.
Advisories
Testers also noted this 490,271 times in 2025 as an advisory, without failing the car for it. That is worth acting on before the next test comes round.
Nearby on the list
Every defect on the list, from 42,728,066 MOT tests in 2025.